<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div class="num"></div>
</body>
<script src="../javaScript/checkbox/js/jquery-1.9.1.min.js"></script>
<script>
    function showScore($ele, num, secand, pause){ //second  按照秒数，动画运行多少秒
        if (!secand) { secand = 2;}
        if (!pause) { pause = 20;}

        var len = String(num).length;

        var temnum, times = 0 , stepTimes, max ;
        var numArr = String(num).split("");


        function getRandom(n){
            var num = Math.floor(Math.random()*(Math.pow(10, n)-1 - Math.pow(10, n-1))+Math.pow(10, n-1));

            if (String(num).length !== n) {num = getRandom(n);}

            return num;
        }

        function setValue(num, pause, secand){//second 运行多少秒后停止
            var len = String(num).length, j=0;

            if (!stepTimes) {
                max = Math.ceil(secand*1000/len);
                stepTimes = Math.ceil(max/pause);
            }

            temnum = "";
            setTimeout(function(){
                for (var i = 1; i <= len; i++) {
                    if (times >= stepTimes*i) {
                        j++;
                        temnum += numArr[i-1]+"";
                    }else{
                        break;
                    }
                };

                if (j < len) {
                    $ele.html(temnum+""+getRandom(len-j));
                }else{
                    $ele.html(temnum);
                }


                if (times >= max || j >= len) {return;};

                setValue(num, pause, secand);
                times++;

            }, pause);


        }

        setValue(num, pause, secand);

    }

    showScore($(".num"), 2344, 1.5, 10);
</script>
</html>